Knobby Knife Dirt Bike Tires and Wheels: Tire Tools and Accessories

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4 to 6 more rides per tire

I get about two more rides from the rear tire each time I knobby knife it (I ride mostly rocky trails). Usually knobby knife the rear 2 or 3 times before the knobs are toast. If you are patient, you can also knife the braking edge of the knobs. Usually takes me about 12-15 minutes to do one tire. You can also squeeze a little extra life out of the front tire if you sharpen up those knob edges, but it does take a bit longer to knife than the rear. Overall I consider this a great product.